Method and device for enhancing the run of a paper web in a paper machine
US6004430A · kind A · utility
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G9/0063
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and device for enhancing the run of a web in a paper machine in which water is removed from the web by pressing the web in at least one press nip and after pressing, the web is dried in at least one dryer group applying impingement drying. The web is guided along a substantially linear path or by using a large curve radius in the dryer group applying impingement drying. In the drying stage, after the impingement drying, the web is dried in at least one dryer group having normal single-wire draw. The web is passed from the pressing stage to the drying stage as a closed draw and more particularly, from the pressing stage to the area with single-wire draw in the drying stage so that the web is constantly supported against at least one support face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.